How to Repair the Throttle Position Sensor on a 1992 Jeep Cherokee

The Cherokee name dates as far back as 1974, when Jeep attached the name to a sporty version of its full-size Wagoneer. In 1984, well before compact SUVs became popular, Jeep introduced the compact Cherokee SUV. The 1992 Cherokee came standard with a 2.5-liter, four-cylinder engine and had a 4.0-liter, six-cylinder available. Both engines used a throttle position sensor to let the powertrain control module know the position of the throttle valve. Replacing the throttle position sensor on the 1992 is just half the battle, as you must adjust it after installing it.

Instructions

1

Trace the air filter outlet tube from the air filter box toward the engine until you reach the throttle body.

2

Find the throttle position sensor on the drivers side of the throttle body. Lift upward on the locking tab on the throttle position sensors wiring harness and unplug the wiring harness. Remove the screws securing the sensor, using a Phillips screwdriver, and remove the throttle position sensor from the vehicle.

3

Install a new throttle position sensor onto the throttle body so its tabs insert into the slots in the throttle body valve. Lightly snug the throttle position sensors mounting screws with a Phillips screwdriver. Plug the wiring harness into the receptacle on the new throttle position sensor.

4

Pierce the orange wire with a dark-blue stripe on the throttle position sensors wiring harness with the positive probe of a voltmeter and pierce the black wire with the light-blue stripe on the wiring harness with the negative probe.

5

Turn the Jeeps ignition to the "Run" position and rotate the throttle position sensor, as needed, until the voltmeter reads 4.2 volts. Tighten the throttle position sensors screws with a Phillips head screwdriver in the position that the voltmeter displays 4.2 volts.